added pcne module

[riccabolla]

PR checklist

Closes #XXX

• This comment contains a description of changes (with reason).
• If you've fixed a bug or added code that should be tested, add tests!
• If you've added a new tool - have you followed the module conventions in the contribution docs
• If necessary, include test data in your PR.
• Remove all TODO statements.
• Broadcast software version numbers to topic: versions - See version_topics
• Follow the naming conventions.
• Follow the parameters requirements.
• Follow the input/output options guidelines.
• Add a resource label
• Use BioConda and BioContainers if possible to fulfil software requirements.
• Ensure that the test works with either Docker / Singularity. Conda CI tests can be quite flaky:
  • For modules:
    • nf-core modules test <MODULE> --profile docker
    • nf-core modules test <MODULE> --profile singularity
    • nf-core modules test <MODULE> --profile conda
  • For subworkflows:
    • nf-core subworkflows test <SUBWORKFLOW> --profile docker
    • nf-core subworkflows test <SUBWORKFLOW> --profile singularity
    • nf-core subworkflows test <SUBWORKFLOW> --profile conda

[famosab]

Please join the nf-core organization on GitHub to enable the CI-tests to run on your PR. You can request to join the organization via #github-invitations in the nf-core slack. You can join the nf-core slack via https://nf-co.re/join.

[riccabolla]

Please join the nf-core organization on GitHub to enable the CI-tests to run on your PR. You can request to join the organization via #github-invitations in the nf-core slack. You can join the nf-core slack via https://nf-co.re/join.

Thank you! Done!

[famosab]

@nf-core-bot fix linting

[famosab]

Thank you for your contribution to nf-core! We really appreciate it. I added a few comments to your PR.

[famosab]

We are almost done, you still should change the way the snapshots are being generated (see comment) and I would suggest to have a test that shows that the plot file is being produced (and how that happens - via an args?). Otherwise very good work!

[famosab]

@mashehu This snapshot fails linting because it says versions are not present but that is not the case? Maybe the linting is too restrictive here as well?